音标:[ik'stiŋkʃәn] ;
n. 消失, 消灭, 废止
[化] 消光; 熄灭
n. no longer active; extinguished
n. no longer in existence
n. the reduction of the intensity of radiation as a consequence of absorption and radiation
词型变化:名词复数形式 : extinctions
考试类型:[六级/托福/GRE]
词性分布:
名词100%

extinction的用法和样例:

例句

用作名词(n.)
  1. Its extinction is just a question of time.它的消失只是一个时间问题。
  2. The World Dinosaur Valley brings back from extinction the most mammoth creatures our planet has ever known.恐龙世界将呈现出世界上最多的已然消失的猛犸。

词汇搭配

  • mass extinction大量消亡
  • arc extinction灭弧
  • secondary extinction次级消光
  • extinction coefficient消光系数
  • fire extinction灭火
  • extinction distance消光距离,吸光长度...
  • extinction position消光位置
  • extinction ratio消光系数
  • flame extinction火焰熄灭
  • extinction probability消灭概率
  • extinction rule消光规则
  • complete extinction完全熄火
  • extinction angle消弧角,消光角...
  • inclined extinction斜消光
  • extinction time消灭时间
  • extinction effect消光效应,消退效应...
  • extinction direction消光方向
  • primary extinction初级消光
  • extinction voltage熄灭电压,灭弧电压,...
  • extinction potential熄灭电势,熄火电位,...

经典引文

  • Londoners..have uprooted some of the more striking plants of the London area almost to the point of extinction.

    出自:R. S. R. Fitter
  • The progress of an artist is..a continual extinction of personality.

    出自:T. S. Eliot
  • Many times..the Jews would be threatened with extinction.

    出自:J. A. Michener
【近义词】

Conservationists are overestimating the number of species that have been driven to extinction(消失), scientists have said. A study has found that a third of all mammal species declared extinct in the past few centuries have turned up alive and well

发表于:2019-01-07 / 阅读(37) / 评论(0) 分类 英语新闻

Neil: Hello and welcome to Six-Minute English from BBC Learning English, I'm Neil and with me today is Rosie. Rosie: Hi there. Neil: Well, today we're talking about men. Rosie: That sounds interesting. Neil: It is very interesting especially if you'r

发表于:2019-01-07 / 阅读(100) / 评论(0) 分类 六分钟英语

By Lisa Schlein Geneva 12 September 2007 A new report says the number of species threatened with extinction is escalating. The World Conservation Union, which has just released its Red List of Threatened Species, warns life on Earth will continue to

发表于:2019-01-13 / 阅读(85) / 评论(0) 分类 2007年VOA标准英语(九月)

Researchers have developed a new computer model that they say helps determine which mammals are headed for extinction as a result of human activity. Earth is undergoing its sixth mass extinction, threatening about a quarter of all mammal species, ac

发表于:2019-01-13 / 阅读(51) / 评论(0) 分类 VOA标准英语2009年(六月)

The Yangtze River is a major habitant for finless porpoise, an aquatic marine mammal close to dolphins. However due to increasing human activities the number of the animal has been declining in China over the years. Provinces along the Yangtze River

发表于:2019-01-19 / 阅读(64) / 评论(0) 分类 2018CRI中国国际广播电台

Cambodia is home to the largest population of sun bears left in the wild. As the worlds smallest bear species, they are now facing a high risk of extinction due to the twin threat of habitat loss and illegal hunting. Charities are working hard to sav

发表于:2019-02-04 / 阅读(43) / 评论(0) 分类 英语新闻视频
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